Rinehart daughter loses bid to stop trust feud trial

Ginia Rinehart (right) has lost her bid to stop the long-running feud over a family trust going to trial.

AAP: Lincoln Baker

Gina Rinehart's youngest daughter has lost a last-ditch attempt to stop a family feud over a trust going to trial.

A Supreme Court trial due to start in Sydney on Tuesday will examine allegations Gina Rinehart engaged in serious misconduct by withholding information from her children about a trust set up by her father Lang Hancock.

She is accused of changing the date her children could access their money without telling them.

Her children John Hancock and Bianca Rinehart are pushing ahead with the case and although their sister Hope Welker originally sided with them, she has since dropped out.

There have been dramatic developments in the case this week.

Today a last minute appeal by Gina Rinehart's youngest daughter, 25-year-old Ginia, to have the feud dealt with in private arbitration instead of going to trial was dismissed.

Ginia Rinehart's lawyers argued the trial will be a ''farce'' if it goes ahead next week, but the Court of Appeal ruled against the application.

The last minute appeal followed a surprise declaration by Gina Rinehart on Tuesday that she wants to be discharged as trustee.

Her lawyers said the court case has put her under pressure and has the potential to affect her business interests.